MRI APPARATUS

PROBLEM TO BE SOLVED: To provide an MRI apparatus capable of outputting desired RF pulse intensity.SOLUTION: An MRI apparatus includes: an RF pulse generator generating a first RF pulse in time series; an amplification part outputting a second RF pulse generated by amplifying the first RF pulse; a p...

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Bibliographic Details
Main Author YAMANAKA MASAAKI
Format Patent
LanguageEnglish
Japanese
Published 10.03.2016
Subjects
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
SURGERY
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Summary:PROBLEM TO BE SOLVED: To provide an MRI apparatus capable of outputting desired RF pulse intensity.SOLUTION: An MRI apparatus includes: an RF pulse generator generating a first RF pulse in time series; an amplification part outputting a second RF pulse generated by amplifying the first RF pulse; a peak value acquisition part acquiring a peak output value of the second RF pulse; a correction value calculating part calculating a correction value from difference between a reference peak output value as a peak output value corresponding to a prescribed reference pulse and a peak output value of the second RF pulse; a correction part correcting the output of the first RF pulse generated in the RF pulse generator in accordance with the correction value.SELECTED DRAWING: Figure 2 【課題】所望のＲＦパルス強度を出力できるＭＲＩ装置を提供する。【解決手段】本実施形態に係るＭＲＩ装置は、第１のＲＦパルスを時系列で発生させるＲＦパルス発生器と、前記第１のＲＦパルスを増幅した第２のＲＦパルスを出力する増幅部と、前記第２のＲＦパルスのピーク出力値を取得するピーク値取得部と、所定の基準パルスに対応するピーク出力値である基準ピーク出力値と前記第２のＲＦパルスのピーク出力値との差から補正値を算出する補正値算出部と、前記ＲＦパルス発生器で発生する第１のＲＦパルスの出力を前記補正値により補正する補正部と、を備えたことを特徴とする。【選択図】 図２
Bibliography:Application Number: JP20140156067